its the black version of google ( it uses less power ), i would say googl;e are suppporting "earth hour", its the day when your supposed to turn your lights of for 1 hour.

Hehe, depends on what kind of display you use. On a LCD it actually uses more power Since every pixel has to be lit up to block out the light. Imho it's generally just pure BS anyway. Even a cathode ray tube (CRT) doesn't use any noticable more power when showing a white screen than a black.